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TECHNICAL PAPERS

An Advanced Model to Study the Possible Thermomechanical Damage of Lubricated Sliding-Rolling Line Contacts From Soft Particles

[+] Author and Article Information
George K. Nikas

Mechanical Engineering Department, Imperial College of Science, Technology and Medicine, Exhibition Road, London SW7 2BX, England e-mail: g.nikas@ic.ac.uk

J. Tribol 123(4), 828-841 (Aug 03, 2000) (14 pages) doi:10.1115/1.1331061 History: Received February 15, 2000; Revised August 03, 2000
Copyright © 2001 by ASME
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References

Nikas,  G. K., Sayles,  R. S., and Ioannides,  E., 1998, “Effects of Debris Particles in Sliding/Rolling Elastohydrodynamic Contacts,” IMechE J. Eng. Tribol., 212, No. J5, pp. 333–343.
Nikas,  G. K., Ioannides,  E., and Sayles,  R. S., 1999, “Thermal Modeling and Effects From Debris Particles in Sliding/Rolling EHD Line Contacts—A Possible Local Scuffing Mode,” ASME J. Tribol., 121, No. 2, pp. 272–281.
Nikas,  G. K., Sayles,  R. S., and Ioannides,  E., 1999, “Thermoelastic Distortion of EHD Line Contacts During the Passage of Soft Debris Particles,” ASME J. Tribol., 121, No. 2, pp. 265–271.
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Figures

Grahic Jump Location
Relative speeds and forces on the particle
Grahic Jump Location
Particle (bold circle) partitioned in sectors and stresses on a sector
Grahic Jump Location
Heat generation zone inside the particle
Grahic Jump Location
Flow chart of the model
Grahic Jump Location
Particle-disk radius as the particle passes through the EHD gap
Grahic Jump Location
Contact forces on the particle as it passes through the EHD gap
Grahic Jump Location
Frictional and fluid forces on the particle as it passes through the EHD gap
Grahic Jump Location
Average contact pressure on the particle as it passes through the EHD gap
Grahic Jump Location
Flash temperature distributions on the counterfaces when the particle starts exiting the Hertzian zone
Grahic Jump Location
Contour maps of the surface temperatures when the particle starts exiting the Hertzian zone

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